Hydraulic fracturing technique

Patent · Tue Jan 26 04:00:00 EST 1965

OSTI ID:6683678

Graham, J W

This improved hydraulic fracturing method consists of injecting into previously formed fractures filled with a very viscous fluid, a relatively nonviscous fluid containing sand or other propping agent material. The low viscosity fluid fingers through the high viscosity fluid in radial channels and when the fingers containing the propping agent reach the extremity of the highly viscous fluid, they mushroom out to form more extensive areas of propping sand. The highly viscous fluid should be in the range of 100 to 100,000 cps. It may be a crude oil or refinery cuts and blends used alone or with a bodying agent added, such as colloid materials, metal soaps of organic acids, blown asphalt, or pitch. The low viscosity fluid should be in the range of 1 to 10 cps and may be composed of the same material as the high viscosity fluid with no bodying agent added. (4 claims)

• Assignee: TUL; EDB-81-025629
• Patent Number(s): US 3167124
• OSTI ID: 6683678
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
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Plowshare-- (-1989)
ASPHALTS
BITUMENS
COMMINUTION
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FRACTURING
FUEL GAS
FUELS
GAS FUELS
GASES
HYDRAULIC FRACTURING
NATURAL GAS
NATURAL GAS WELLS
OIL WELLS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PITCHES
RECOVERY
SAND
SOAPS
TAR
VISCOSITY
WELLS